Introduction to Oracle

Administration

Glen Parkerhttp://presentation.glenparker.net

University of South Florida

BbWorld 07Boston, MA

Today

•Rename presentation “Intro to Backup & Recovery”

•Backup strategy

•Backup & Recovery Example

http://presentation.glenparker.net

RMAN Backups

Cold Backups

Hot Backups

SQL> archive log list

Database log mode Archive ModeAutomatic archival Enabled

Do you Archivelog ?

Database log mode No Archive ModeAutomatic archival Disabled

- or -

create pfile from spfile;alter system set log_archive_start=TRUE scope=spfile;alter system set log_archive_dest_1=<path> scope=spfile;shutdown immediate;startup mountalter database archivelog;alter database open;

Start Archivelog Today

RMAN Backups

Cold Backups

Hot Backups

Control File

SimpleOne Database

No Stored ScriptsFewer Recovery Options

Repository

ComplexMany databases

N+1 Backup problemStored Scripts

RMAN

?

RMAN Prerequisites Database in Archivelog mode

A separate storage location from the production database

Multiplexed Controlfiles

RMAN Setuprman TARGET sys/password@SID

CONFIGURE CHANNEL DEVICE TYPE DISK MAXPIECESIZE = 2G FORMAT '/nfs/backup/SID/ora_df%t_s%s_s%p';

CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 30 DAYS;

RMAN Setuprman TARGET sys/password@SID

CONFIGURE CONTROLFILE AUTOBACKUP ON;

CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '/nfs/backup/SID/controlfile%F';

RMAN Backuprman TARGET sys/password@SID

RMAN> BACKUP INCREMENTAL LEVEL 0 DATABASE SPFILE PLUS ARCHIVELOG ;

RMAN Backuprman TARGET sys/password@SID

RMAN> BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE SPFILE PLUS ARCHIVELOG;

RMAN Automation

# crontab -l

30 1 * * 0 /oracle/backup/SID_levelzero.sh30 1 * * 1-6 /oracle/backup/SID_levelone.sh

RMAN Recovery

rman TARGET sys/password@SID

RMAN> STARTUP FORCE MOUNT; RESTORE DATABASE; RECOVER DATABASE; ALTER DATABASE OPEN;

Result: No Data Loss

Nuff’ Nuff’ SaidSaid

Practice Recovery

Often

Questions

Online Resourceshttp://scholar.com

Search: ‘raistlinxw’ & ‘bbworld07’

Glen Parkerglparker@usf.edu

http://presentation.glenparker.net

Thank You ! !

Start on bootSolaris - /var/opt/oracle/oratabLinux - /etc/oratab

# cat oratabSID0:/usr/local/oracle/base/product/9.2:Y

# cat /etc/rc3.d/S99oracle$ORACLE_HOME/bin/dbstart$ORACLE_HOME/bin/lsnrctl start

login.sql

export SQLPATH = $ORACLE_HOME/sqlpath

cat $SQLPATH/login.sql

define _editor=vi

set serveroutput on size 1000000

set trimspool onset long 5000set linesize 100set pagesize 0set echo off

Logs

SQL> show parameter dump_dest

- Background (alert.log) # grep ORA alert.log

- Core

- User

Blackboard Support

Point in Time snapshotDatabase most expensive queries

cd /usr/local/blackboard/tools/perf_reports

./run_all.sh

dbms_statssqlplus system/password

SQL> exec dbms_stats.gather_schema_stats( OWNER=>’bb_bb60’, METHOD_OPT=>’for all indexed columns size auto’, CASCADE=>true);

Statspack setup

SQL> @?/rdbms/admin/spcreate

user: perfstat

Statspack Snapshot

sqlplus perfstat/password

SQL> exec statspack.snap

15 minutes apart

Statspack Report

sqlplus perfstat/password

SQL> @?/rdbms/admin/spreport

Questions

Online Resourceshttp://scholar.com

Search: ‘raistlinxw’ & ‘bbworld07’

Glen Parkerglparker@usf.edu

http://presentation.glenparker.net

Thank You ! !